4. Visual Studio streamlines developing universal Windows apps 3-591: Using Visual Studio to build XAML universal apps (Navit Saxena)

5. You can tailor the design to each device

6. 3-591: Using Visual Studio to build XAML universal apps (Navit Saxena)

9. ClassesStructsInterfaces Windows 8.1 SDK56611959 Windows Phone 8.1 SDK62413157 +58+12-2

11. 2-516: Building Great UI in XAML (Shawn Oster)

22. SetDesiredBoundsMode( ApplicationViewBoundsMode.UseCoreWindow);

25. #if WINDOWS_PHONE_APP Windows.Phone.UI.Input.HardwareButtons.BackPressed += HardwareButtons_BackPressed; #endif 2-537: Navigation Model for XAML Apps (Roberth Karman)

30. 2-253: Getting your app tapped (Matt Hidinger)

31. 2560 x 1440 1920 x 1080 1366 x 768 450 x 800 to scale Scale Factors and Effective Resolution 384 x 683 3-541: From 4 to 40 inches (Peter Torr)